Divisional Rankings

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Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Illinois, Climate Division 3. West

Average Temperature Rankings, January 1987

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Record Warmest
Period	Value	1901-2000 Mean	Anomaly	Rank (1895-2022)	Warmest/Coolest Since	Record
January 1987 1-Month	25.8°F (-3.4°C)	23.8°F (-4.6°C)	2.0°F (1.2°C)	80th Coolest	Coolest since: 1985	1977
	25.8°F (-3.4°C)	23.8°F (-4.6°C)	2.0°F (1.2°C)	49th Warmest	Warmest since: 1986	2006
	Ties: 1909, 1954
Dec 1986–Jan 1987 2-Month	28.6°F (-1.9°C)	26.1°F (-3.3°C)	2.5°F (1.4°C)	87th Coolest	Coolest since: 1986	1918
	28.6°F (-1.9°C)	26.1°F (-3.3°C)	2.5°F (1.4°C)	41st Warmest	Warmest since: 1983	1932
	Ties: 1907, 1995, 2017
Nov 1986–Jan 1987 3-Month	31.1°F (-0.5°C)	30.8°F (-0.7°C)	0.3°F (0.2°C)	62nd Coolest	Coolest since: 1986	1977
	31.1°F (-0.5°C)	30.8°F (-0.7°C)	0.3°F (0.2°C)	66th Warmest	Warmest since: 1983	2002
	Ties: 1922, 1993
Oct 1986–Jan 1987 4-Month	37.0°F (2.8°C)	36.7°F (2.6°C)	0.3°F (0.2°C)	64th Coolest	Coolest since: 1986	1977
	37.0°F (2.8°C)	36.7°F (2.6°C)	0.3°F (0.2°C)	64th Warmest	Warmest since: 1983	1932
	Ties: 1990, 1991
Sep 1986–Jan 1987 5-Month	43.4°F (6.3°C)	42.6°F (5.9°C)	0.8°F (0.4°C)	76th Coolest	Coolest since: 1986	1977
	43.4°F (6.3°C)	42.6°F (5.9°C)	0.8°F (0.4°C)	52nd Warmest	Warmest since: 1983	1932
	Ties: 1974
Aug 1986–Jan 1987 6-Month	47.6°F (8.7°C)	47.8°F (8.8°C)	-0.2°F (-0.1°C)	53rd Coolest	Coolest since: 1986	1977
Aug 1986–Jan 1987 6-Month	47.6°F (8.7°C)	47.8°F (8.8°C)	-0.2°F (-0.1°C)	75th Warmest	Warmest since: 1985	1932
Jul 1986–Jan 1987 7-Month	51.9°F (11.1°C)	51.8°F (11.0°C)	0.1°F (0.1°C)	55th Coolest	Coolest since: 1986	1977
	51.9°F (11.1°C)	51.8°F (11.0°C)	0.1°F (0.1°C)	73rd Warmest	Warmest since: 1984	1932
	Ties: 1915, 1961, 1984, 1991, 2019
Jun 1986–Jan 1987 8-Month	54.6°F (12.6°C)	54.3°F (12.4°C)	0.3°F (0.2°C)	67th Coolest	Coolest since: 1986	1977
	54.6°F (12.6°C)	54.3°F (12.4°C)	0.3°F (0.2°C)	61st Warmest	Warmest since: 1983	1932
	Ties: 1902
May 1986–Jan 1987 9-Month	55.6°F (13.1°C)	55.1°F (12.8°C)	0.5°F (0.3°C)	73rd Coolest	Coolest since: 1986	1918, 1977
	55.6°F (13.1°C)	55.1°F (12.8°C)	0.5°F (0.3°C)	55th Warmest	Warmest since: 1983	1932
	Ties: 1906, 1980
Apr 1986–Jan 1987 10-Month	55.7°F (13.2°C)	54.8°F (12.7°C)	0.9°F (0.5°C)	91st Coolest	Coolest since: 1986	1918
	55.7°F (13.2°C)	54.8°F (12.7°C)	0.9°F (0.5°C)	37th Warmest	Warmest since: 1972	1932
	Ties: 1913, 1960
Mar 1986–Jan 1987 11-Month	54.6°F (12.6°C)	53.4°F (11.9°C)	1.2°F (0.7°C)	97th Coolest	Coolest since: 1986	1918
	54.6°F (12.6°C)	53.4°F (11.9°C)	1.2°F (0.7°C)	31st Warmest	Warmest since: 1964	1932, 2013, 2017
	Ties: 1955
Feb 1986–Jan 1987 12-Month	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	94th Coolest	Coolest since: 1986	1918
	52.1°F (11.2°C)	51.3°F (10.7°C)	0.8°F (0.5°C)	34th Warmest	Warmest since: 1964	1932
	Ties: 1953, 1964
Aug 1985–Jan 1987 18-Month	50.0°F (10.0°C)	50.1°F (10.1°C)	-0.1°F (-0.1°C)	54th Coolest	Coolest since: 1986	1905, 1918
	50.0°F (10.0°C)	50.1°F (10.1°C)	-0.1°F (-0.1°C)	73rd Warmest	Warmest since: 1984	2017
	Ties: 1898, 1928, 1937, 1964, 1982, 2004
Feb 1985–Jan 1987 24-Month	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	75th Coolest	Coolest since: 1986	1918
	51.4°F (10.8°C)	51.3°F (10.7°C)	0.1°F (0.1°C)	52nd Warmest	Warmest since: 1975	1932
	Ties: 1938, 1972, 2011
Feb 1984–Jan 1987 36-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	60th Coolest	Coolest since: 1986	1905
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	66th Warmest	Warmest since: 1976	1933
	Ties: 1899, 1951, 1967, 1975
Feb 1983–Jan 1987 48-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	55th Coolest	Coolest since: 1986	1905
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	70th Warmest	Warmest since: 1975	1934
	Ties: 1966, 1974, 1999, 2011
Feb 1982–Jan 1987 60-Month	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	51st Coolest	Coolest since: 1986	1906
	51.2°F (10.7°C)	51.2°F (10.7°C)	0.0°F (0.0°C)	73rd Warmest	Warmest since: 1976	1935
	Ties: 1901, 1914, 1922, 1967, 1975, 1976

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Rankings, published January 2023, retrieved on February 4, 2023 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/rankings